Weeks' Snowflake Blue bottle (any info?)

[BDBottle]

I found this bottle today. Not sure what it was used for, but the name on it is pretty cool.

If anyone has any kind of history or thoughts for its use send them away. I'd love to learn more about it.

 

[epackage]

It's laundry bluing....

http://en.wikipedia.org/wiki/Bluing_(fabric)